Mound Systems for On-site Wastewater Treatment

Siting, Design and Construction in Ohio

Bulletin 813

Mound System Design Example

Step 2. Determine Design Wastewater Loading Rate.

The design daily wastewater volume, based on the Ohio Household Sewage Rules (OAC 3701-29), is 120 gallons/bedroom/day.

Newly constructed mound system to serve 3-bedroom house.

Design Wastewater Loading Rate:
For a three-bedroom residence, design wastewater loading rate is
120 gallons/day/bedroom x 3 bedrooms = 360 gallons/day (gpd)